The LC662104A, LC662106A, and LC662108A are 4-bit CMOS microcontrollers that integrate all the functions required in a special-purpose telephone controller, including ROM, RAM, I/O ports, a serial interface, a DTMF generator, timers, and interrupt functions. These microcontrollers are available in a 30-pin package.
The LC662104A, LC662106A, and LC662108A are 4-bit CMOS microcontrollers designed to integrate all functions required in a special-purpose telephone controller onto a single chip. These devices include on-chip ROM, RAM, I/O ports, a serial interface, a DTMF generator, timers, and interrupt functions.
| On-chip ROM capacities | 4, 6, and 8 kilobytes |
|---|---|
| On-chip RAM capacity | 384 x 4 bits |
| I/O ports count | 24 pins |
| Instruction cycle time | 0.95 to 10 ps |
| Operating power-supply voltage | 3.0 to 5.5 V |
These microcontrollers are available in a 30-pin package.
Yes, the microcontroller incorporates a circuit that can generate two sine wave outputs for DIMF output.